A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 152. umol of iron(II) bromide into a 200. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's iron(II) bromide solution. Round your answer to 3 significant digits.

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## Calculating Molarity Using Solute Moles

### Problem Statement

A chemist prepares a solution of iron(II) bromide (\(\text{FeBr}_2\)) by measuring out 152 \(\mu\text{mol}\) of iron(II) bromide into a 200. \(\text{mL}\) volumetric flask and filling the flask to the mark with water.

Calculate the concentration in \(\text{mol/L}\) of the chemist’s iron(II) bromide solution. Round your answer to 3 significant digits.

### Interactive Elements

- There is an input box with "[mol/L]" for entering the calculated concentration.
- Below the input box, there are additional options for interaction:
  - **Check:** Validates the entered answer.
  - **Explanation:** Provides guidance or steps to solve the problem.
- **Icons:** Options for additional help or to reset entries.

### Instructions for Students

1. Calculate the molarity using the formula:
   \[
   \text{Molarity (M)} = \frac{\text{Number of moles of solute}}{\text{Volume of solution in liters}}
   \]
   - Convert 152 \(\mu\text{mol}\) to \(\text{mol}\).
   - Convert 200 \(\text{mL}\) to \(\text{L}\).
2. Input your answer in the provided box and use the "Check" button to confirm its accuracy.
3. Use the "Explanation" button if you require step-by-step assistance.

### Additional Information

This exercise helps reinforce understanding of molarity, unit conversions, and the preparation of solutions in a laboratory setting.
Transcribed Image Text:## Calculating Molarity Using Solute Moles ### Problem Statement A chemist prepares a solution of iron(II) bromide (\(\text{FeBr}_2\)) by measuring out 152 \(\mu\text{mol}\) of iron(II) bromide into a 200. \(\text{mL}\) volumetric flask and filling the flask to the mark with water. Calculate the concentration in \(\text{mol/L}\) of the chemist’s iron(II) bromide solution. Round your answer to 3 significant digits. ### Interactive Elements - There is an input box with "[mol/L]" for entering the calculated concentration. - Below the input box, there are additional options for interaction: - **Check:** Validates the entered answer. - **Explanation:** Provides guidance or steps to solve the problem. - **Icons:** Options for additional help or to reset entries. ### Instructions for Students 1. Calculate the molarity using the formula: \[ \text{Molarity (M)} = \frac{\text{Number of moles of solute}}{\text{Volume of solution in liters}} \] - Convert 152 \(\mu\text{mol}\) to \(\text{mol}\). - Convert 200 \(\text{mL}\) to \(\text{L}\). 2. Input your answer in the provided box and use the "Check" button to confirm its accuracy. 3. Use the "Explanation" button if you require step-by-step assistance. ### Additional Information This exercise helps reinforce understanding of molarity, unit conversions, and the preparation of solutions in a laboratory setting.
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